Time for High Arctic wellies. Snow has come as a warm front rolled in off the Atlantic on a South West wind and met colder air sitting over Cumbria. Overnight snow has capped the stone walls, piling in drifts against the broader base. Sunlight melts the snow on the top-stones and a layer of gleaming water defines a network of pastures. It’s an effect I’ve never seen here before and I’m always eager to see what snow and ice will do.